Hi,

        Thanks for your reply, the audio patch works.
I can play audio between DomUs.

於 2010/9/20 下午 09:20, Felix Kuperjans 提到:
>   I can only answer your third question:
>
> You can switch to using ALSA with qemu (no idea why this is *not* the
> default), e.g. by recompiling xen-tools with the attached patch. In KVM,
> a QEMU_AUDIO_DRV="alsa" environment variable works, too. No idea whether
> XEN accepts it or not.
>
> Another way with further control would be to use PulseAudio in the Dom0
> and in the DomUs (I think there is even a windows port), which is able
> to send the audio data over network connections, so you won't need any
> virtual sound cards. I have no setup/tutorial at hand, but it should be
> easy to find on the internet.
>
> Regards,
> Felix
>
> Am 20.09.2010 13:19, schrieb "涂堂訓(Tang-Hsun Tu)":
>>   Dear all:
>>
>>        I am trying to send a fake event to input layer of QEMU,
>> i.e. keyboard and mouse.
>>
>>        QEMU provides two API to send these input event,
>> that is, kbd_put_keycode() and kbd_mouse_event() for keyboard and
>> mouse, respectively.
>> And these functions will make a suitable packet for low-level
>> hardware, e.g. PS/2 or USB.
>>
>>        For a PS/2 mouse, there is a call chain  ps2_mouse_event() =>
>> ps2_mouse_send_packet() =>  ps2_queue()
>> when the function kbd_mouse_event() is called.
>> However, when I make a fake PS/2 mouse packet and directly call
>> ps2_queue()
>> to put the packet to PS/2 queue.
>> I store the PS2MouseState "s" when 8042 initializes and call
>> ps2_queue() to send a event,
>> for example,
>>            ps2_queue(&s->common, 0x1001);
>>            ps2_queue(&s->common, 0);
>>            ps2_queue(&s->common, 0);
>>
>> And I also insert some debug  message in ps2_read_data() function,
>> it works well and reads data from queue correctly..
>> But the mouse pointer does not move (even right/left click).
>> I also set the default mouse to "Mouse $0: QEMU PS/2 Mouse" in QEMU
>> consloe,
>> but the result is the same. What else I forgot to signal? How could I
>> fix it?
>>
>>
>>         The second question is when I create a PV Linux (Ubuntu),
>> the mouse pointer does not move correctly.
>> The screen (VNC) shows a black point and a mouse pointer,
>> and their speed does not the same.
>> In HVM XP, we can use usbdevice='tablet' to fix it,
>> but the same line does not work in PV Linux. How could I fix it?
>>
>>
>>        The last question is that does the sound can be shared (mixed)
>> between multiple DomainUs?
>> (The device will be busy when I create a domain.) If can, how could I do?
>>
>>
>>       Thanks!
>>
>> Best Regards,
>> Tang-Hsun Tu
>>
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>>
>>
>>
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